Agilent HPLC Column Selection Guide

Columns for Analytical HPLCAchieve excellent peak shape and resolution –and eliminate "false starts."Good news for analysts who do not have time to "make columns work" for a particularapplication: ZORBAX columns let you choose the right column based on your sampleand mobile phase – eliminating any guesswork.Additionally, Agilent’s ZORBAX silica is manufactured by Agilent – not purchased fromoutside suppliers. And that means we control every step of the manufacturing process,ensuring lot-to-lot consistency, superior performance, and long-term, reliable results.In this section, you will find a diverse range of ZORBAX columns designed for optimumresolution over a wide pH range, including:• Poroshell 120 columns – feature high efficiency and high resolution with 50% less pressurethan sub-2 micron columns.• ZORBAX Eclipse Plus HPLC columns – designed to reliably produce superior peak shapefor basic compounds.• ZORBAX Eclipse PAH HPLC columns – ideal for applications requiring "shape selectivity"or the separation of geometric isomers.• ZORBAX Eclipse XDB HPLC columns – a trusted choice for analytical and regulatory methods.• ZORBAX StableBond HPLC columns – the industry leader for low-pH applications.• ZORBAX Rx HPLC columns – provide excellent stability up to pH 9.• ZORBAX Extend-C18 HPLC columns – feature bidentate bonding that allows you to develophigh-resolution separations at high pH levels.• ZORBAX Bonus-RP HPLC columns – an alkyl-amide column that offers excellent peak shapefor bases, along with an alternative selectivity.• Original ZORBAX HPLC columns – are made with Type A silica and are used in manyestablished separation methods.• ZORBAX HILIC Plus columns – superior peak shape and retention of polar basic compoundswith silica in HILIC mode• ZORBAX Method Development kits – contain three columns for the price of two! Each hasa different bonded phase for optimal selectivity.• ZORBAX Method Validation kits – choose as many columns as you need (or as few) to makemethod validation easier and less expensive.• ZORBAX Ion Exchange columns – available as Strong Anion Exchange (SAX) and StrongCation Exchange (SCX)Order online at www.agilent.com/chem/store19